Fast Monostable Sensor (MEC208E)

Figure 1 - Fast monostable.

Optical Transmitter (CB4953E)
This circuit for light data transmission (visible or IR) has a maximum speed of 1 Mbps and can be...
Bass-Booster Preamplifier with 741 (CB926E)
This circuit in its original version was found in an 1975 English publication. It is a...
Window comparator with lamps (CB5077E)
Instead of LED bulbs, LEDs with a series 470 ohm 1k resistor can be used in this 80's circuit....